Dyfyniad APA

PORTER, M. E. (1990). The Competitive Advantage Of Nation Michael E. Porter. the Free Press.

Dyfyniad Arddull Chicago

PORTER, Michael E. The Competitive Advantage Of Nation Michael E. Porter. the Free Press, 1990.

Dyfyniad MLA

PORTER, Michael E. The Competitive Advantage Of Nation Michael E. Porter. the Free Press, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.